Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. David L Clauss, O.D.
Optometrist in Harrisonburg, VA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225112147
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Registry record
Entity type Individual (Type 1)
Name Dr. David L Clauss
Credential O.D.
Sex Male
Practice address 1870 Reservoir St, Harrisonburg, VA, 22801
Phone (540) 434-6622
Enumeration date Oct 25, 2006
Last updated in NPPES Oct 25, 2021
Taxonomy & licenses
152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 0618000364 (VA) Secondary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 009237135 | Medicaid | VA | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does David Clauss practice?
The practice location on file with NPPES is in Harrisonburg, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for David Clauss?
The National Provider Identifier (NPI) for David Clauss is 1225112147, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Michael Gowen Optometrist · Harrisonburg, VA NPI 1831170026 Mpg LLC Optometrist · Harrisonburg, VA NPI 1912029786 Myeyedr Optometry of Virginia, Pllc Optometrist · Harrisonburg, VA NPI 1417325135 Robert Welch Optometrist · Harrisonburg, VA NPI 1396115226 Avia Dolberry Optometrist · Harrisonburg, VA NPI 1811825037
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-25.